Mechanical aviation sealing element

Abstract

The utility model provides a mechanical aviation sealing element, and belongs to the technical field of sealing elements. Comprising a sealing element main body, and the sealing element main body comprises a main body and end heads arranged at the two ends of the main body; wear-resistant rings are arranged on the outer side walls of the end heads at the two ends, a buffer spring arranged between the end heads is arranged on the outer side of the main body in a sleeving mode, a protective sleeve ring arranged on the outer side of the buffer spring is arranged between the end heads, and a plurality of embedded heads inserted into the inner side walls of the end heads are arranged on the side walls of the two ends of the protective sleeve ring. The buffer spring made of SUP10 spring steel materials has good rebound resilience, assists the sealing element body in rebounding, effectively prevents the sealing element body from being compressed into an irreversible state, and prevents the sealing performance from being affected. The abrasion-resistant strength is enhanced through the abrasion-resistant ring, and the situation that the end is damaged due to friction and cannot be sealed is effectively prevented; and the buffer spring can be covered through the protective lantern ring, so that the buffer spring is prevented from being directly exposed to be corroded by the outside, the appearance is more attractive, and the service life is relatively prolonged.

Description

Technical Field

[0001] The utility model provides a mechanical aviation sealing component, belonging to the technical field of sealing components. Background Art

[0002] Seals are materials or parts that prevent fluids or solid particles from leaking from adjacent mating surfaces and prevent external impurities such as dust and moisture from invading components inside machinery and equipment. Although rubber and plastic seals are small, their functions make them basic components and accessories in major national economic industries such as defense, chemical industry, petroleum, coal, and aviation, and they occupy a very important position in the development of the national economy.

[0003] Aviation, a complex and strategic human activity, refers to the flight of aircraft in the Earth's atmosphere, as well as many related fields such as scientific research and education, industrial manufacturing, public transportation, professional operations, aviation sports, national defense and military, and government management. Through the use of air space and aircraft, aviation activities can be subdivided into many independent industries and fields, such as aviation manufacturing, civil aviation, etc. Equipment manufactured in the aviation field inevitably needs to use seals to achieve sealing performance.

[0004] Existing seals can basically meet the needs of use in the aerospace field, but there are still certain defects: the main body of the seal is usually made of rubber material, but after a long period of compression, the rubber material will be compressed into an irreversible state, which can easily greatly affect the performance of the seal.

[0005] Based on this, the utility model provides a mechanical aviation seal. Utility Model Content

[0006] The technical problem solved by the utility model is that after a long period of compression, the main body of the rubber seal will be compressed into an irreversible state, which greatly affects the sealing performance.

[0007] In order to solve the technical problem, the technical solution provided by the utility model is: a mechanical aviation seal, including a seal body, the seal body including a main body and end heads arranged at both ends of the main body; wear-resistant rings are provided on the outer walls of the end heads at both ends, a buffer spring placed between the end heads is sleeved on the outer side of the main body, a protective ring placed on the outside of the buffer spring is provided between the end heads, and a plurality of embedded heads inserted into the inner walls of the end heads are provided on the side walls at both ends of the protective ring.

[0008] Furthermore, the outer wall diameter of the end head is slightly larger than the outer wall diameter of the main body, and the main body of the seal is in an I-shaped structure.

[0009] Furthermore, the outer wall diameter of the end cap is the same as the outer wall diameter of the protective collar.

[0010] Furthermore, the sealing body and the protective collar are both made of fluororubber material.

[0011] Furthermore, the wear-resistant ring is made of aviation ceramic material.

[0012] Furthermore, the buffer spring is made of aviation spring steel.

[0013] Furthermore, a socket matching the embedded head is provided on the inner side wall of the end head.

[0014] Beneficial effects of the utility model:

[0015] 1 Under the action of the buffer spring, when the seal body is compressed, the buffer spring will also be compressed at the same time. The buffer spring made of SUP spring steel has good resilience, and can rebound quickly after compression to assist the seal body to rebound, so that the seal body will not be in a compressed state for a long time, effectively preventing the seal body from being compressed into an irreversible state, so as not to affect the sealing performance;

[0016] 2. The wear-resistant ring is used to enhance the wear resistance, effectively preventing the end from being damaged by friction and causing failure to seal;

[0017] 3. The buffer spring can be covered by the protective collar to prevent the buffer spring from being directly exposed to the outside and corroded by the outside world, which is more beautiful and has a relatively longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a mechanical aviation seal of the utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of a mechanical aviation seal of the utility model. Figure 2 .

[0020] Figure 3 The utility model is a schematic plan view of a mechanical aviation seal.

[0021] 1. Seal body; 2. Main body; 3. End; 4. Wear-resistant ring; 5. Buffer spring; 6. Protective ring; 7. Embedded head; 8. Socket. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] According to the attached Figure 1 , 2As shown in Figure 3: The utility model provides a mechanical aviation seal: it includes a seal body 1, the seal body 1 includes a main body 2, and end heads 3 arranged at both ends of the main body 2. The outer wall diameter of the end heads 3 is slightly larger than the outer wall diameter of the main body 2. The seal body 1 is an I-shaped structure, which facilitates the installation of a buffer spring 5 and a protective collar 6. The seal body 1 and the protective collar 6 are both made of fluororubber material. The introduction of fluorine atoms gives the rubber excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance. It has been widely used in aerospace, aviation, automobiles, petroleum, household appliances and other fields, and is an irreplaceable key material in the cutting-edge defense industry.

[0024] According to the attached Figure 1 As shown: wear-resistant rings 4 are provided on the outer walls of the end heads 3 at both ends. The wear-resistant rings 4 are made of aviation ceramic materials. When used in aviation manufacturing, aviation ceramic materials have high strength and rigidity, and can adapt to high and low temperature changes and strong vibrations in extreme environments. The wear-resistant strength is enhanced by the wear-resistant rings 4, which effectively prevents the end heads 3 from being damaged by friction and causing failure to seal.

[0025] According to the attached Figure 1 , 3 As shown: a buffer spring 5 is sleeved on the outside of the main body 2 and placed between the end heads 3. The buffer spring 5 is made of aviation spring steel. The spring steel is SUP10 (SAE6150). SUP10 is a high-quality spring steel suitable for engineering, automobile, aviation and other industrial fields. In the field of aviation, its good elasticity, high strength and fatigue strength make it suitable for manufacturing spring elements, connectors, suspension systems and braking systems, etc. In the field of aviation, its good elasticity, high strength and fatigue strength make it suitable for manufacturing spring elements, connectors, suspension systems and braking systems, etc. A protective collar 6 is provided between the end heads 3 and is placed on the outside of the buffer spring 5. The outer wall diameter of the end head 3 is the same as the outer wall diameter of the protective collar 6. The side walls at both ends of the protective collar 6 are provided with a plurality of embedded heads 7 inserted into the inner wall of the end head 3. The inner wall of the end head 3 is provided with a socket 8 matching the embedded head 7. By inserting the embedded head 7 into the socket 8, the protective sleeve can be limited and locked between the end heads 3. Under the action of the buffer spring 5, when the seal body 1 is compressed, the buffer spring 5 will also be compressed at the same time. The buffer spring 5 made of SUP10 spring steel material has good resilience, and can rebound quickly after compression to assist the seal body 1 in rebounding, so that the seal body 1 will not be in a compressed state for a long time, effectively preventing the seal body 1 from being compressed into an irreversible state, so as not to affect the sealing performance.

[0026] Principle of the utility model

[0027] When in use, the wear-resistant ring 4 is used to enhance the wear resistance, effectively preventing the end head 3 from being damaged by friction and causing failure to seal. Under the action of the buffer spring 5, when the seal body 1 is compressed, the buffer spring 5 will also be compressed at the same time. The buffer spring 5 made of SUP10 spring steel has good resilience and can rebound quickly after compression to assist the seal body 1 in rebounding, so that the seal body 1 will not be in a compressed state for a long time, effectively preventing the seal body 1 from being compressed into an irreversible state to avoid affecting the sealing performance. The buffer spring 5 can be covered by the protective ring 6 to prevent the buffer spring 5 from being directly exposed to the outside and corroded by the outside world, which is more beautiful and has a relatively improved service life.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A mechanical aviation seal, comprising a seal body (1), characterized in that: The sealing body (1) comprises a main body (2) and end heads (3) arranged at both ends of the main body (2); wear-resistant rings (4) are provided on the outer side walls of the end heads (3) at both ends; a buffer spring (5) arranged between the end heads (3) is sleeved on the outer side of the main body (2); a protective collar (6) arranged on the outer side of the buffer spring (5) is provided between the end heads (3); and a plurality of embedded heads (7) are provided on the side walls at both ends of the protective collar (6) for inserting into the inner side walls of the end heads (3).

2. A mechanical aviation seal according to claim 1, characterized in that: The outer wall diameter of the end head (3) is slightly larger than the outer wall diameter of the main body (2), and the sealing body (1) is in an I-shaped structure.

3. A mechanical aviation seal according to claim 1, characterized in that: The outer wall diameter of the end head (3) is the same as the outer wall diameter of the protective collar (6).

4. A mechanical aviation seal according to claim 1, characterized in that: The sealing element body (1) and the protective collar (6) are both made of fluororubber material.

5. A mechanical aviation seal according to claim 1, characterized in that: The wear-resistant ring (4) is made of aviation ceramic material.

6. A mechanical aviation seal according to claim 1, characterized in that: The buffer spring (5) is made of aviation spring steel.

7. A mechanical aviation seal according to claim 1, characterized in that: The inner side wall of the end head (3) is provided with a plug hole (8) matching the embedded head (7).

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